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Two new feature flags were added to control whether upcalls to the transport result in context switches or stay in the calling context. NVMET_FCTGTFEAT_CMD_IN_ISR: By default, if the flag is not set, the transport assumes the lldd is in a non-isr context and in the cpu context it should be for the io queue. As such, the cmd handler is called directly in the calling context. If the flag is set, indicating the upcall is an isr context, the transport mandates a transition to a workqueue. The workqueue assigned to the queue is used for the context. NVMET_FCTGTFEAT_OPDONE_IN_ISR By default, if the flag is not set, the transport assumes the lldd is in a non-isr context and in the cpu context it should be for the io queue. As such, the fcp operation done callback is called directly in the calling context. If the flag is set, indicating the upcall is an isr context, the transport mandates a transition to a workqueue. The workqueue assigned to the queue is used for the context. Updated lpfc for flags Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> |
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| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.